Philadelphia Phillies (70-52, first in the NL East) vs. Washington Nationals (49-73, fifth in the NL East) Washington; Saturday, 4:05 p.m. EDT PITCHING PROBABLES: Phillies: Taijuan Walker (4-5, 3.39 ...

In Game 2, RHP Tanner Roark (16-10, 2.83 ERA) starts for the Nationals, taking the assignment that likely would have gone to Strasburg if he were healthy.

This is the second article in a series that looks at the five best players at each position for t he Washington Nationals. In this installment are first and third basemen and designated hitters.